I've had my 5S since mid/early october whenever it came out. Been totally happy with it so far but lately (in the past 2 days) TouchID suddenly stops responding. As in when I press the home/lock button and rest my finger on the sensor, it doesn't do anything, and eventually after a few seconds displays "slide to unlock". It's like the capacitive ring isn't even recognizing that my finger is there because there is no indication that it is scanning/trying to scan my finger. Restarting the phone fixes this but I was wondering if anyone's had a similar problem? I'm hoping it'll go away soon.